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Hydrothol 191 Granular Aquatic Algaecide & Herbicide

SKU: HYDROTHOLGRAN

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Details

Usage

Weeds Treated

Reviews

Fast-Acting Granular Formula

Great For Bottom Growing Algae & Chara

Control Weeds Surrounding Docks & Shorelines

Hydrothol-191 provides rapid-acting contact control for submerged weeds and algae. Hydrothol-191 even works where there is moving water such as a canal or bay area. Hydrothol-191 can be used in combination, in rotation or as an alternative to copper for control of algae. Dosage rates vary depending on what type of algae or weed is being treated and the density of the infestation.

Usage Information

From dosage rates to product labels, the USAGE tab contains all of the information you need to properly apply your pond care products.

How To Apply

Broadcast Hydrothol-191 onto the area to be treated using a granular spreader. Treat only up to half of the pond's surface and wait 10-14 days before a second treatment. In hot weather or when fish are stressed, treat only 1/4 - 1/3 of the pond at a time. Over time, the algae and weeds will begin to brown and die. Once it is completely dead, use a rake, like the Pond & Beach Rake, to remove dead algae away to prevent an accumulation of dead algae and muck.

When To Apply

Hydrothol-191 should be applied when algae and weeds are actively growing. Begin applications when algae and weeds first appear. Unless steps are taken to reduce the overall nutrients in the pond, multiple applications may be needed for full season algae control.

Restrictions

Do not use in ponds with koi or goldfish. Not for use in water garden or koi ponds.

Wait 7-25 days before using treated water for human drinking water.

Wait 7-25 days before using treated water for livestock and domestic animal consumption.

Wait 7 days before using treated water for irrigation on nursery or greenhouse crops.

Documentation

Weeds Treated

The first step towards effectively treating any pond weed is proper identification. Hydrothol 191 Granular Aquatic Algaecide & Herbicide is recommended for use against each of the weeds listed below. Click on your desired weed for more information and alternate control options.

American Pondweed

Chara

Coontail

Curly Leaf Pondweed

Filamentous Algae

Hydrilla/Elodea

Planktonic Algae

Southern Naiad

What others are saying

5 out of 5

Customer Rating

"I was surprised"Kate Ludtke of rogers city, MI

My weeds were outta control and i called in to see what I could get, they said this was good. I recieved it in 2 days amazingly, and used it right away, took about an hour for me to figure out how to open the top, but once done it was easy to apply and killed most the stuff dead in like 4 days. I'll be buying more soon.

Meet The Pond Guy

Jason Blake

Realizing the demand for comprehensive pond treatments, a motivated 15 year old Jason Blake hired his 1st employee and The Pond Guy® was born. Hailing from humble beginnings as a pond raking business based in his parent’s pole barn, Jason Blake has grown a small town pond service into a nationwide company providing pond care products to customers in all 50 states.